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Dog Heat Cycle Nasıl Hesaplanır?

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Female dogs cycle typically every 6 months. The fertile window (oestrus) is approximately days 9–14. Understanding the cycle helps with breeding or prevention.

Formül

Estrous cycle: 21 days typical (range 14–42). Proestrus 7–10 days (swelling, discharge). Estrus 3–14 days (receptive, fertile window). Diestrus 60 days (progesterone peak). Anestrus 120–150 days (rest)
CycleStart
First day of heat (proestrus) (Date)
CycleDays
Cycle length (Days (typical 21))
FertileWindow
Peak fertility window (Days 5–14 of cycle approximately)

Adım Adım Kılavuz

  1. 1Proestrus (days 1–9): bloody discharge; not receptive
  2. 2Oestrus (days 9–14): receptive; fertile window
  3. 3Progesterone testing gives most accurate ovulation timing
  4. 4Average cycle interval: 6 months (range 4–12 months)

Çözümlü Örnekler

Giriş
Cycle started 1 March
Sonuç
Fertile window approx 9–14 March; next cycle approx September

Sık sorulan sorular

How often do dogs go into heat?

Usually twice yearly (every 6 months), but ranges 4–12 months normal. Smaller breeds more frequent. Larger breeds less frequent. Nursing, illness can delay cycles.

When can a dog get pregnant?

During estrus (proestrus day 7–10 typically). Fertile window 48 hrs around LH surge (behavioral: standing to mate). Sperm live 7 days in female tract; egg 24–48 hours.

What signs indicate heat?

Swollen vulva, bloody discharge, increased urination, behavioral changes (restlessness, nervousness). Some breeds discharge less visible. Smell test: males attracted from distance.

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